MUMBAI, India, July 5 -- Intellectual Property India has published a patent application (202517059939 A) filed by Posco Co. Ltd., Gyeongsangbuk, Republic of Korea, on June 23, for 'hot-rolled steel sheet and manufacturing method therefor.'
Inventor(s) include Lee, Je-Woong; Kim, Sung-Il; Yi, Il-Cheol; and Hyun-Taek.
The application for the patent was published on July 4, under issue no. 27/2025.
According to the abstract released by the Intellectual Property India: "A hot-rolled steel sheet and a manufacturing method therefor are provided. The hot-rolled steel sheet of the present invention includes, by wt%, 0.020-0.080% of C, 0.01-0.50% of Si, 0.8-1.8% of Mn, 0.010-0.100% of Al, 0.001-0.020% of P, 0.001-0.010% of S, 0.001-0.010% of N, 0.010-0.120% of Ti, 0.010-0.050% of Nb, and the remainder of Fe and inevitable impurities, satisfies an X value of 3.50-6.00 as defined by equation 1, and has a micro-structure in which the sum of ferrite and bainite phases is at least 90 area% and the sum of the remaining martensite and MA phases is less than 10 area%."
The patent application was internationally filed on Dec. 15, 2023, under International application No.PCT/KR2023/020831.
Disclaimer: Curated by HT Syndication.
